Westmoreland, Pennsylvania HVAC Climate Zone

Westmoreland is located in IECC Climate Zone 5A (Cool - Humid). Get accurate Manual J load calculations with official design temperatures for Westmoreland.

Climate Zone
5A
Winter Design
0°F
Summer Design
91°F
ZIP Codes
76

Westmoreland HVAC Contractors: Get Your Free Manual J Report

Climate Zone 5A requires precise load calculations. Upload your Westmoreland blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Westmoreland's exact design temperatures (0°F winter / 91°F summer).

Claim Free Report
No credit card required

Verify Your Westmoreland ZIP Code

Enter your ZIP code to confirm it's in Westmoreland and get climate zone details.

Westmoreland covers 76 ZIP codes: 15012, 15062, 15068, 15072, 15083, 15085, 15087, 15089, 15448, 15479 and 66 more

Westmoreland Design Temperatures

Official ASHRAE design temperatures for Westmoreland, used for accurate Manual J load calculations.

Winter 99% Design Temp
0°F
Summer 1% Design Temp
91°F
Summer Wet Bulb
75°F

IECC Requirements for Zone 5A

Minimum insulation and window requirements for Westmoreland per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-30
Window U-Factor:0.3
Window SHGC:0.4

Energy Code: 2021 IECC

Recommended HVAC Equipment for Westmoreland

Heating Systems

Gas furnace (95%+ AFUE)
Boiler
Heat pump (cold climate)
Typical AFUE
95-98%

Cooling Systems

AC (13-16 SEER)
Heat pump
Typical SEER
13-16 SEER

Get Free Manual J Calculations for Westmoreland

Upload your Westmoreland blueprint and get a professional Manual J load calculation using official Zone 5A design temperatures. First report is FREE.

Westmoreland design temps
Zone 5A compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Westmoreland contractors who trust AutoHVAC